Get the FREE one-click dictionary software for Windows
or the iPhone/iPad and Android apps
Noun: size constancy
  1. The tendency to perceive the veridical size of a familiar object despite differences in their distance (and consequent differences in the size of the pattern projected on the retina of the eye)
    "Size constancy allows us to perceive a car as the same size whether it's near or far away"

Derived forms: size constancies

Type of: constancy, perceptual constancy

Encyclopedia: Size constancy